package cn.zhengwenzhou.wechat.handler;

import cn.zhengwenzhou.wechat.builder.TextBuilder;
import cn.zhengwenzhou.wechat.service.WeixinService;
import me.chanjar.weixin.common.exception.WxErrorException;
import me.chanjar.weixin.common.session.WxSessionManager;
import me.chanjar.weixin.mp.api.WxMpService;
import me.chanjar.weixin.mp.bean.message.WxMpXmlMessage;
import me.chanjar.weixin.mp.bean.message.WxMpXmlOutMessage;
import me.chanjar.weixin.mp.bean.result.WxMpUser;
import org.springframework.stereotype.Component;

import java.util.Map;

@Component
public class SubscribeHandler extends AbstractHandler
{
	
	@Override
	public WxMpXmlOutMessage handle(WxMpXmlMessage wxMessage, Map<String, Object> context, WxMpService wxMpService, WxSessionManager sessionManager) throws WxErrorException
	{
		
		this.logger.info("新关注用户 OPENID: " + wxMessage.getFromUser());
		
		WeixinService weixinService = (WeixinService) wxMpService;
		
		// 获取微信用户基本信息
		WxMpUser userWxInfo = weixinService.getUserService().userInfo(wxMessage.getFromUser(), null);
		
		if(userWxInfo != null)
		{
			// TODO 可以添加关注用户到本地
		}
		
		WxMpXmlOutMessage responseResult = null;
		try
		{
			responseResult = handleSpecial(wxMessage);
		} catch(Exception e)
		{
			this.logger.error(e.getMessage(), e);
		}
		
		if(responseResult != null)
		{
			return responseResult;
		}
		
		try
		{
			return new TextBuilder().build("感谢关注", wxMessage, weixinService);
		} catch(Exception e)
		{
			this.logger.error(e.getMessage(), e);
		}
		
		return null;
	}
	
	/**
	 * 处理特殊请求，比如如果是扫码进来的，可以做相应处理
	 */
	protected WxMpXmlOutMessage handleSpecial(WxMpXmlMessage wxMessage) throws Exception
	{
		//TODO
		return null;
	}
	
}
